Internal Adaptation of Implant-Supported, Polymer-Infused Ceramic Crowns Fabricated by Two CAD/CAM Systems.

Purpose: The aim of this in vitro study was to compare the internal 3D adaptation of polymer-infused ceramic crowns fabricated using two CAD/CAM systems: CEREC inLab MC XL and Ceramill Motion 2 (5X).

Materials And Methods: Twenty-five implant-supported metal-ceramic crowns were fabricated conventionally using the lost-wax technique, and the outer contour was scanned to serve as a guide for designing the polymer-infused ceramic CAD/CAM crowns. Twenty-five crowns were fabricated using CEREC, and 25 crowns were fabricated using Ceramill.

Comparison of escalating, constant, and reduction energy output in ESWL for renal stones: multi-arm prospective randomized study.

This study was designed to find out the optimized energy delivery strategy in Shock Wave Lithotripsy (SWL) that yield to the best stone-free rate (SFR). In this clinical trial, 150 consecutive patients were randomized into three groups: (a) Dose escalation, 1500 SW at 18 kV, followed by 1500 SW at 20 kV then 1500 SW at 22 kV. (b) Constant dose, 4500 SW at 20 kV.

Effect of modification of shock-wave delivery on stone fragmentation.

Purpose Of Review: Shock-wave lithotripsy has been the mainstay of urinary-stone treatment over the past 20 years, with three generations of lithotripters now in the market place. Little improvement, however, has been made in the overall efficiency, since the original Dornier HM3 lithotripter. Over the past 5 years much progress has been made in the basic research of shock-wave lithotripsy, with better understanding of the mechanisms involved in stone fragmentation.

Slow versus fast shock wave lithotripsy rate for urolithiasis: a prospective randomized study.

Purpose: We determined the effect of shock wave lithotripsy (SWL) rate on treatment outcome in patients with renal and ureteral stones.

Materials And Methods: A total of 156 patients were prospectively randomized to receive SWL using a slow (60 pulses per minute) or fast wave rate (120 pulses per minute). Inclusion criteria were patients with a single radiopaque renal or ureteral stone not exceeding 30 mm in maximum diameter.

Erectile function following high-energy thick loop prostatectomy.

Objectives: To evaluate the effects of the high energy cutting current that is used in conjunction with the thick loop on erectile function in patients with benign prostatic hyperplasia (BPH) undergoing prostatectomy.

Patients And Methods: Seventy patients with BPH were included in this prospective study. All patients underwent transurethral vaporization resection of the prostate (TUVRP) using the "Wing" thick loop and 250-Watt cutting current.